// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "lcd.h"
#include <ddk/debug.h>
#include <ddk/protocol/platform-device.h>
#include <ddktl/device.h>

#define DELAY_CMD           (0xFF)
#define DCS_CMD             (0xFE)
#define GEN_CMD             (0xFD)

#define READ_DISPLAY_ID_CMD (0x04)
#define READ_DISPLAY_ID_LEN (0x03)

namespace astro_display {

namespace {
// Based on Vendor datasheet
// <CMD TYPE><LENGTH><DATA...>
// <DELAY_CMD><DELAY (ms)>
constexpr uint8_t lcd_shutdown_sequence[] = {
    DELAY_CMD,5,
    DCS_CMD,1,0x28,
    DELAY_CMD, 30,
    DCS_CMD,1,0x10,
    DELAY_CMD,150,
};

constexpr uint8_t lcd_init_sequence_TV070WSM_FT[] = {
    GEN_CMD,2,0xE0,0x00,
    GEN_CMD,2,0xE1,0x93,
    GEN_CMD,2,0xE2,0x65,
    GEN_CMD,2,0xE3,0xF8,
    GEN_CMD,2,0xE0,0x01,
    GEN_CMD,2,0x00,0x00,
    GEN_CMD,2,0x01,0x90,
    GEN_CMD,2,0x03,0x00,
    GEN_CMD,2,0x04,0x90,
    GEN_CMD,2,0x17,0x00,
    GEN_CMD,2,0x18,0xB0,
    GEN_CMD,2,0x19,0x01,
    GEN_CMD,2,0x1A,0x00,
    GEN_CMD,2,0x1B,0xB0,
    GEN_CMD,2,0x1C,0x01,
    GEN_CMD,2,0x1F,0x3E,
    GEN_CMD,2,0x20,0x2F,
    GEN_CMD,2,0x21,0x2F,
    GEN_CMD,2,0x22,0x0E,
    GEN_CMD,2,0x37,0x69,
    GEN_CMD,2,0x38,0x05,
    GEN_CMD,2,0x39,0x00,
    GEN_CMD,2,0x3A,0x01,
    GEN_CMD,2,0x3C,0x90,
    GEN_CMD,2,0x3D,0xFF,
    GEN_CMD,2,0x3E,0xFF,
    GEN_CMD,2,0x3F,0xFF,
    GEN_CMD,2,0x40,0x02,
    GEN_CMD,2,0x41,0x80,
    GEN_CMD,2,0x42,0x99,
    GEN_CMD,2,0x43,0x06,
    GEN_CMD,2,0x44,0x09,
    GEN_CMD,2,0x45,0x3C,
    GEN_CMD,2,0x4B,0x04,
    GEN_CMD,2,0x55,0x0D,
    GEN_CMD,2,0x56,0x01,
    GEN_CMD,2,0x57,0x89,
    GEN_CMD,2,0x58,0x0A,
    GEN_CMD,2,0x59,0x0A,
    GEN_CMD,2,0x5A,0x27,
    GEN_CMD,2,0x5B,0x15,
    GEN_CMD,2,0x5D,0x7C,
    GEN_CMD,2,0x5E,0x67,
    GEN_CMD,2,0x5F,0x58,
    GEN_CMD,2,0x60,0x4C,
    GEN_CMD,2,0x61,0x48,
    GEN_CMD,2,0x62,0x38,
    GEN_CMD,2,0x63,0x3C,
    GEN_CMD,2,0x64,0x24,
    GEN_CMD,2,0x65,0x3B,
    GEN_CMD,2,0x66,0x38,
    GEN_CMD,2,0x67,0x36,
    GEN_CMD,2,0x68,0x53,
    GEN_CMD,2,0x69,0x3F,
    GEN_CMD,2,0x6A,0x44,
    GEN_CMD,2,0x6B,0x35,
    GEN_CMD,2,0x6C,0x2E,
    GEN_CMD,2,0x6D,0x1F,
    GEN_CMD,2,0x6E,0x0C,
    GEN_CMD,2,0x6F,0x00,
    GEN_CMD,2,0x70,0x7C,
    GEN_CMD,2,0x71,0x67,
    GEN_CMD,2,0x72,0x58,
    GEN_CMD,2,0x73,0x4C,
    GEN_CMD,2,0x74,0x48,
    GEN_CMD,2,0x75,0x38,
    GEN_CMD,2,0x76,0x3C,
    GEN_CMD,2,0x77,0x24,
    GEN_CMD,2,0x78,0x3B,
    GEN_CMD,2,0x79,0x38,
    GEN_CMD,2,0x7A,0x36,
    GEN_CMD,2,0x7B,0x53,
    GEN_CMD,2,0x7C,0x3F,
    GEN_CMD,2,0x7D,0x44,
    GEN_CMD,2,0x7E,0x35,
    GEN_CMD,2,0x7F,0x2E,
    GEN_CMD,2,0x80,0x1F,
    GEN_CMD,2,0x81,0x0C,
    GEN_CMD,2,0x82,0x00,
    GEN_CMD,2,0xE0,0x02,
    GEN_CMD,2,0x00,0x45,
    GEN_CMD,2,0x01,0x45,
    GEN_CMD,2,0x02,0x47,
    GEN_CMD,2,0x03,0x47,
    GEN_CMD,2,0x04,0x41,
    GEN_CMD,2,0x05,0x41,
    GEN_CMD,2,0x06,0x1F,
    GEN_CMD,2,0x07,0x1F,
    GEN_CMD,2,0x08,0x1F,
    GEN_CMD,2,0x09,0x1F,
    GEN_CMD,2,0x0A,0x1F,
    GEN_CMD,2,0x0B,0x1F,
    GEN_CMD,2,0x0C,0x1F,
    GEN_CMD,2,0x0D,0x1D,
    GEN_CMD,2,0x0E,0x1D,
    GEN_CMD,2,0x0F,0x1D,
    GEN_CMD,2,0x10,0x1F,
    GEN_CMD,2,0x11,0x1F,
    GEN_CMD,2,0x12,0x1F,
    GEN_CMD,2,0x13,0x1F,
    GEN_CMD,2,0x14,0x1F,
    GEN_CMD,2,0x15,0x1F,
    GEN_CMD,2,0x16,0x44,
    GEN_CMD,2,0x17,0x44,
    GEN_CMD,2,0x18,0x46,
    GEN_CMD,2,0x19,0x46,
    GEN_CMD,2,0x1A,0x40,
    GEN_CMD,2,0x1B,0x40,
    GEN_CMD,2,0x1C,0x1F,
    GEN_CMD,2,0x1D,0x1F,
    GEN_CMD,2,0x1E,0x1F,
    GEN_CMD,2,0x1F,0x1F,
    GEN_CMD,2,0x20,0x1F,
    GEN_CMD,2,0x21,0x1F,
    GEN_CMD,2,0x22,0x1F,
    GEN_CMD,2,0x23,0x1D,
    GEN_CMD,2,0x24,0x1D,
    GEN_CMD,2,0x25,0x1D,
    GEN_CMD,2,0x26,0x1F,
    GEN_CMD,2,0x27,0x1F,
    GEN_CMD,2,0x28,0x1F,
    GEN_CMD,2,0x29,0x1F,
    GEN_CMD,2,0x2A,0x1F,
    GEN_CMD,2,0x2B,0x1F,
    GEN_CMD,2,0x58,0x40,
    GEN_CMD,2,0x59,0x00,
    GEN_CMD,2,0x5A,0x00,
    GEN_CMD,2,0x5B,0x10,
    GEN_CMD,2,0x5C,0x06,
    GEN_CMD,2,0x5D,0x20,
    GEN_CMD,2,0x5E,0x00,
    GEN_CMD,2,0x5F,0x00,
    GEN_CMD,2,0x61,0x00,
    GEN_CMD,2,0x62,0x00,
    GEN_CMD,2,0x63,0x7A,
    GEN_CMD,2,0x64,0x7A,
    GEN_CMD,2,0x65,0x00,
    GEN_CMD,2,0x66,0x00,
    GEN_CMD,2,0x67,0x32,
    GEN_CMD,2,0x68,0x08,
    GEN_CMD,2,0x69,0x7A,
    GEN_CMD,2,0x6A,0x7A,
    GEN_CMD,2,0x6B,0x00,
    GEN_CMD,2,0x6C,0x00,
    GEN_CMD,2,0x6D,0x04,
    GEN_CMD,2,0x6E,0x04,
    GEN_CMD,2,0x6F,0x88,
    GEN_CMD,2,0x70,0x00,
    GEN_CMD,2,0x71,0x00,
    GEN_CMD,2,0x72,0x06,
    GEN_CMD,2,0x73,0x7B,
    GEN_CMD,2,0x74,0x00,
    GEN_CMD,2,0x75,0x07,
    GEN_CMD,2,0x76,0x00,
    GEN_CMD,2,0x77,0x5D,
    GEN_CMD,2,0x78,0x17,
    GEN_CMD,2,0x79,0x1F,
    GEN_CMD,2,0x7A,0x00,
    GEN_CMD,2,0x7B,0x00,
    GEN_CMD,2,0x7C,0x00,
    GEN_CMD,2,0x7D,0x03,
    GEN_CMD,2,0x7E,0x7B,
    GEN_CMD,2,0xE0,0x03,
    GEN_CMD,2,0xAF,0x20,
    GEN_CMD,2,0xE0,0x04,
    GEN_CMD,2,0x09,0x11,
    GEN_CMD,2,0x0E,0x48,
    GEN_CMD,2,0x2B,0x2B,
    GEN_CMD,2,0x2E,0x44,
    GEN_CMD,2,0x41,0xFF,
    GEN_CMD,2,0xE0,0x00,
    GEN_CMD,2,0xE6,0x02,
    GEN_CMD,2,0xE7,0x0C,
    DCS_CMD,1,0x11,
    DELAY_CMD,120,
    GEN_CMD,2,0xE0,0x03,
    GEN_CMD,2,0x2B,0x01,
    GEN_CMD,2,0x2C,0x00,
    GEN_CMD,2,0x30,0x03,
    GEN_CMD,2,0x31,0xCC,
    GEN_CMD,2,0x32,0x03,
    GEN_CMD,2,0x33,0xC9,
    GEN_CMD,2,0x34,0x03,
    GEN_CMD,2,0x35,0xC0,
    GEN_CMD,2,0x36,0x03,
    GEN_CMD,2,0x37,0xB3,
    GEN_CMD,2,0x38,0x03,
    GEN_CMD,2,0x39,0xAB,
    GEN_CMD,2,0x3A,0x03,
    GEN_CMD,2,0x3B,0x9D,
    GEN_CMD,2,0x3C,0x03,
    GEN_CMD,2,0x3D,0x8F,
    GEN_CMD,2,0x3E,0x03,
    GEN_CMD,2,0x3F,0x6D,
    GEN_CMD,2,0x40,0x03,
    GEN_CMD,2,0x41,0x51,
    GEN_CMD,2,0x42,0x03,
    GEN_CMD,2,0x43,0x17,
    GEN_CMD,2,0x44,0x02,
    GEN_CMD,2,0x45,0xD8,
    GEN_CMD,2,0x46,0x02,
    GEN_CMD,2,0x47,0x60,
    GEN_CMD,2,0x48,0x01,
    GEN_CMD,2,0x49,0xEB,
    GEN_CMD,2,0x4A,0x01,
    GEN_CMD,2,0x4B,0xE5,
    GEN_CMD,2,0x4C,0x01,
    GEN_CMD,2,0x4D,0x6C,
    GEN_CMD,2,0x4E,0x00,
    GEN_CMD,2,0x4F,0xF2,
    GEN_CMD,2,0x50,0x00,
    GEN_CMD,2,0x51,0xB4,
    GEN_CMD,2,0x52,0x00,
    GEN_CMD,2,0x53,0x74,
    GEN_CMD,2,0x54,0x00,
    GEN_CMD,2,0x55,0x54,
    GEN_CMD,2,0x56,0x00,
    GEN_CMD,2,0x57,0x34,
    GEN_CMD,2,0x58,0x00,
    GEN_CMD,2,0x59,0x26,
    GEN_CMD,2,0x5A,0x00,
    GEN_CMD,2,0x5B,0x18,
    GEN_CMD,2,0x5C,0x00,
    GEN_CMD,2,0x5D,0x11,
    GEN_CMD,2,0x5E,0x00,
    GEN_CMD,2,0x5F,0x0A,
    GEN_CMD,2,0x60,0x00,
    GEN_CMD,2,0x61,0x03,
    GEN_CMD,2,0x62,0x00,
    GEN_CMD,2,0x63,0x00,
    GEN_CMD,2,0x64,0x03,
    GEN_CMD,2,0x65,0x9E,
    GEN_CMD,2,0x66,0x03,
    GEN_CMD,2,0x67,0x9B,
    GEN_CMD,2,0x68,0x03,
    GEN_CMD,2,0x69,0x94,
    GEN_CMD,2,0x6A,0x03,
    GEN_CMD,2,0x6B,0x8C,
    GEN_CMD,2,0x6C,0x03,
    GEN_CMD,2,0x6D,0x85,
    GEN_CMD,2,0x6E,0x03,
    GEN_CMD,2,0x6F,0x76,
    GEN_CMD,2,0x70,0x03,
    GEN_CMD,2,0x71,0x67,
    GEN_CMD,2,0x72,0x03,
    GEN_CMD,2,0x73,0x4B,
    GEN_CMD,2,0x74,0x03,
    GEN_CMD,2,0x75,0x2E,
    GEN_CMD,2,0x76,0x02,
    GEN_CMD,2,0x77,0xF7,
    GEN_CMD,2,0x78,0x02,
    GEN_CMD,2,0x79,0xB8,
    GEN_CMD,2,0x7A,0x02,
    GEN_CMD,2,0x7B,0x46,
    GEN_CMD,2,0x7C,0x01,
    GEN_CMD,2,0x7D,0xD6,
    GEN_CMD,2,0x7E,0x01,
    GEN_CMD,2,0x7F,0xD0,
    GEN_CMD,2,0x80,0x01,
    GEN_CMD,2,0x81,0x5C,
    GEN_CMD,2,0x82,0x00,
    GEN_CMD,2,0x83,0xE7,
    GEN_CMD,2,0x84,0x00,
    GEN_CMD,2,0x85,0xAA,
    GEN_CMD,2,0x86,0x00,
    GEN_CMD,2,0x87,0x74,
    GEN_CMD,2,0x88,0x00,
    GEN_CMD,2,0x89,0x5A,
    GEN_CMD,2,0x8A,0x00,
    GEN_CMD,2,0x8B,0x3C,
    GEN_CMD,2,0x8C,0x00,
    GEN_CMD,2,0x8D,0x2C,
    GEN_CMD,2,0x8E,0x00,
    GEN_CMD,2,0x8F,0x1C,
    GEN_CMD,2,0x90,0x00,
    GEN_CMD,2,0x91,0x14,
    GEN_CMD,2,0x92,0x00,
    GEN_CMD,2,0x93,0x0C,
    GEN_CMD,2,0x94,0x00,
    GEN_CMD,2,0x95,0x04,
    GEN_CMD,2,0x96,0x00,
    GEN_CMD,2,0x97,0x00,
    GEN_CMD,2,0xE0,0x00,
    DCS_CMD,1,0x29,
    DELAY_CMD,5,
};
constexpr uint8_t lcd_init_sequence_P070ACB_FT[] = {
    DELAY_CMD, 100,
    GEN_CMD,2,0xE0,0x00,
    GEN_CMD,2,0xE1,0x93,
    GEN_CMD,2,0xE2,0x65,
    GEN_CMD,2,0xE3,0xF8,
    GEN_CMD,2,0x80,0x03,
    GEN_CMD,2,0xE0,0x01,
    GEN_CMD,2,0x0C,0x74,
    GEN_CMD,2,0x17,0x00,
    GEN_CMD,2,0x18,0xEF,
    GEN_CMD,2,0x19,0x00,
    GEN_CMD,2,0x1A,0x00,
    GEN_CMD,2,0x1B,0xEF,
    GEN_CMD,2,0x1C,0x00,
    GEN_CMD,2,0x1F,0x70,
    GEN_CMD,2,0x20,0x2D,
    GEN_CMD,2,0x21,0x2D,
    GEN_CMD,2,0x22,0x7E,
    GEN_CMD,2,0x26,0xF3,
    GEN_CMD,2,0x37,0x09,
    GEN_CMD,2,0x38,0x04,
    GEN_CMD,2,0x39,0x00,
    GEN_CMD,2,0x3A,0x01,
    GEN_CMD,2,0x3C,0x90,
    GEN_CMD,2,0x3D,0xFF,
    GEN_CMD,2,0x3E,0xFF,
    GEN_CMD,2,0x3F,0xFF,
    GEN_CMD,2,0x40,0x02,
    GEN_CMD,2,0x41,0x80,
    GEN_CMD,2,0x42,0x99,
    GEN_CMD,2,0x43,0x14,
    GEN_CMD,2,0x44,0x19,
    GEN_CMD,2,0x45,0x5A,
    GEN_CMD,2,0x4B,0x04,
    GEN_CMD,2,0x55,0x02,
    GEN_CMD,2,0x56,0x01,
    GEN_CMD,2,0x57,0x69,
    GEN_CMD,2,0x58,0x0A,
    GEN_CMD,2,0x59,0x0A,
    GEN_CMD,2,0x5A,0x2E,
    GEN_CMD,2,0x5B,0x19,
    GEN_CMD,2,0x5C,0x15,
    GEN_CMD,2,0x5D,0x77,
    GEN_CMD,2,0x5E,0x56,
    GEN_CMD,2,0x5F,0x45,
    GEN_CMD,2,0x60,0x38,
    GEN_CMD,2,0x61,0x35,
    GEN_CMD,2,0x62,0x27,
    GEN_CMD,2,0x63,0x2D,
    GEN_CMD,2,0x64,0x18,
    GEN_CMD,2,0x65,0x33,
    GEN_CMD,2,0x66,0x34,
    GEN_CMD,2,0x67,0x35,
    GEN_CMD,2,0x68,0x56,
    GEN_CMD,2,0x69,0x45,
    GEN_CMD,2,0x6A,0x4F,
    GEN_CMD,2,0x6B,0x42,
    GEN_CMD,2,0x6C,0x40,
    GEN_CMD,2,0x6D,0x34,
    GEN_CMD,2,0x6E,0x25,
    GEN_CMD,2,0x6F,0x02,
    GEN_CMD,2,0x70,0x77,
    GEN_CMD,2,0x71,0x56,
    GEN_CMD,2,0x72,0x45,
    GEN_CMD,2,0x73,0x38,
    GEN_CMD,2,0x74,0x35,
    GEN_CMD,2,0x75,0x27,
    GEN_CMD,2,0x76,0x2D,
    GEN_CMD,2,0x77,0x18,
    GEN_CMD,2,0x78,0x33,
    GEN_CMD,2,0x79,0x34,
    GEN_CMD,2,0x7A,0x35,
    GEN_CMD,2,0x7B,0x56,
    GEN_CMD,2,0x7C,0x45,
    GEN_CMD,2,0x7D,0x4F,
    GEN_CMD,2,0x7E,0x42,
    GEN_CMD,2,0x7F,0x40,
    GEN_CMD,2,0x80,0x34,
    GEN_CMD,2,0x81,0x25,
    GEN_CMD,2,0x82,0x02,
    GEN_CMD,2,0xE0,0x02,
    GEN_CMD,2,0x00,0x53,
    GEN_CMD,2,0x01,0x55,
    GEN_CMD,2,0x02,0x55,
    GEN_CMD,2,0x03,0x51,
    GEN_CMD,2,0x04,0x77,
    GEN_CMD,2,0x05,0x57,
    GEN_CMD,2,0x06,0x1F,
    GEN_CMD,2,0x07,0x4F,
    GEN_CMD,2,0x08,0x4D,
    GEN_CMD,2,0x09,0x1F,
    GEN_CMD,2,0x0A,0x4B,
    GEN_CMD,2,0x0B,0x49,
    GEN_CMD,2,0x0C,0x1F,
    GEN_CMD,2,0x0D,0x47,
    GEN_CMD,2,0x0E,0x45,
    GEN_CMD,2,0x0F,0x41,
    GEN_CMD,2,0x10,0x1F,
    GEN_CMD,2,0x11,0x1F,
    GEN_CMD,2,0x12,0x1F,
    GEN_CMD,2,0x13,0x55,
    GEN_CMD,2,0x14,0x1F,
    GEN_CMD,2,0x15,0x1F,
    GEN_CMD,2,0x16,0x52,
    GEN_CMD,2,0x17,0x55,
    GEN_CMD,2,0x18,0x55,
    GEN_CMD,2,0x19,0x50,
    GEN_CMD,2,0x1A,0x77,
    GEN_CMD,2,0x1B,0x57,
    GEN_CMD,2,0x1C,0x1F,
    GEN_CMD,2,0x1D,0x4E,
    GEN_CMD,2,0x1E,0x4C,
    GEN_CMD,2,0x1F,0x1F,
    GEN_CMD,2,0x20,0x4A,
    GEN_CMD,2,0x21,0x48,
    GEN_CMD,2,0x22,0x1F,
    GEN_CMD,2,0x23,0x46,
    GEN_CMD,2,0x24,0x44,
    GEN_CMD,2,0x25,0x40,
    GEN_CMD,2,0x26,0x1F,
    GEN_CMD,2,0x27,0x1F,
    GEN_CMD,2,0x28,0x1F,
    GEN_CMD,2,0x29,0x1F,
    GEN_CMD,2,0x2A,0x1F,
    GEN_CMD,2,0x2B,0x55,
    GEN_CMD,2,0x2C,0x12,
    GEN_CMD,2,0x2D,0x15,
    GEN_CMD,2,0x2E,0x15,
    GEN_CMD,2,0x2F,0x00,
    GEN_CMD,2,0x30,0x37,
    GEN_CMD,2,0x31,0x17,
    GEN_CMD,2,0x32,0x1F,
    GEN_CMD,2,0x33,0x08,
    GEN_CMD,2,0x34,0x0A,
    GEN_CMD,2,0x35,0x1F,
    GEN_CMD,2,0x36,0x0C,
    GEN_CMD,2,0x37,0x0E,
    GEN_CMD,2,0x38,0x1F,
    GEN_CMD,2,0x39,0x04,
    GEN_CMD,2,0x3A,0x06,
    GEN_CMD,2,0x3B,0x10,
    GEN_CMD,2,0x3C,0x1F,
    GEN_CMD,2,0x3D,0x1F,
    GEN_CMD,2,0x3E,0x1F,
    GEN_CMD,2,0x3F,0x15,
    GEN_CMD,2,0x40,0x1F,
    GEN_CMD,2,0x41,0x1F,
    GEN_CMD,2,0x42,0x13,
    GEN_CMD,2,0x43,0x15,
    GEN_CMD,2,0x44,0x15,
    GEN_CMD,2,0x45,0x01,
    GEN_CMD,2,0x46,0x37,
    GEN_CMD,2,0x47,0x17,
    GEN_CMD,2,0x48,0x1F,
    GEN_CMD,2,0x49,0x09,
    GEN_CMD,2,0x4A,0x0B,
    GEN_CMD,2,0x4B,0x1F,
    GEN_CMD,2,0x4C,0x0D,
    GEN_CMD,2,0x4D,0x0F,
    GEN_CMD,2,0x4E,0x1F,
    GEN_CMD,2,0x4F,0x05,
    GEN_CMD,2,0x50,0x07,
    GEN_CMD,2,0x51,0x11,
    GEN_CMD,2,0x52,0x1F,
    GEN_CMD,2,0x53,0x1F,
    GEN_CMD,2,0x54,0x1F,
    GEN_CMD,2,0x55,0x1F,
    GEN_CMD,2,0x56,0x1F,
    GEN_CMD,2,0x57,0x15,
    GEN_CMD,2,0x58,0x40,
    GEN_CMD,2,0x59,0x00,
    GEN_CMD,2,0x5A,0x00,
    GEN_CMD,2,0x5B,0x10,
    GEN_CMD,2,0x5C,0x14,
    GEN_CMD,2,0x5D,0x40,
    GEN_CMD,2,0x5E,0x01,
    GEN_CMD,2,0x5F,0x02,
    GEN_CMD,2,0x60,0x40,
    GEN_CMD,2,0x61,0x03,
    GEN_CMD,2,0x62,0x04,
    GEN_CMD,2,0x63,0x7A,
    GEN_CMD,2,0x64,0x7A,
    GEN_CMD,2,0x65,0x74,
    GEN_CMD,2,0x66,0x16,
    GEN_CMD,2,0x67,0xB4,
    GEN_CMD,2,0x68,0x16,
    GEN_CMD,2,0x69,0x7A,
    GEN_CMD,2,0x6A,0x7A,
    GEN_CMD,2,0x6B,0x0C,
    GEN_CMD,2,0x6C,0x00,
    GEN_CMD,2,0x6D,0x04,
    GEN_CMD,2,0x6E,0x04,
    GEN_CMD,2,0x6F,0x88,
    GEN_CMD,2,0x70,0x00,
    GEN_CMD,2,0x71,0x00,
    GEN_CMD,2,0x72,0x06,
    GEN_CMD,2,0x73,0x7B,
    GEN_CMD,2,0x74,0x00,
    GEN_CMD,2,0x75,0xBC,
    GEN_CMD,2,0x76,0x00,
    GEN_CMD,2,0x77,0x04,
    GEN_CMD,2,0x78,0x2C,
    GEN_CMD,2,0x79,0x00,
    GEN_CMD,2,0x7A,0x00,
    GEN_CMD,2,0x7B,0x00,
    GEN_CMD,2,0x7C,0x00,
    GEN_CMD,2,0x7D,0x03,
    GEN_CMD,2,0x7E,0x7B,
    GEN_CMD,2,0xE0,0x04,
    GEN_CMD,2,0x09,0x11,
    GEN_CMD,2,0x0E,0x48,
    GEN_CMD,2,0x2B,0x2B,
    GEN_CMD,2,0x2E,0x44,
    GEN_CMD,2,0xE0,0x00,
    GEN_CMD,2,0xE6,0x02,
    GEN_CMD,2,0xE7,0x0C,
    DCS_CMD,1,0x11,
    DELAY_CMD,120,
    DCS_CMD,1,0x29,
    DCS_CMD,1,0x35,
    DELAY_CMD, 20,
};
} //namespace

zx_status_t Lcd::GetDisplayId() {

    uint8_t cmd = READ_DISPLAY_ID_CMD;
    uint8_t rsp[READ_DISPLAY_ID_LEN];
    zx_status_t status = ZX_OK;
    if ((status = dsi_->Cmd(&cmd, 1, rsp, READ_DISPLAY_ID_LEN,
                            COMMAND_GEN)) != ZX_OK) {
        DISP_ERROR("Could not read out Display ID\n");
        return status;
    }

    DISP_INFO("Display ID: 0x%x, 0x%x, 0x%x\n", rsp[0], rsp[1], rsp[2]);
    return status;
}

// This function write DSI commands based on the input buffer.
zx_status_t Lcd::LoadInitTable(const uint8_t* buffer, size_t size) {
    zx_status_t status = ZX_OK;
    size_t i;
    i  = 0;
    bool isDCS = false;
    while (i < size) {
        switch (buffer[i]) {
        case DELAY_CMD:
            zx_nanosleep(zx_deadline_after(ZX_MSEC(buffer[i + 1])));
            i += 2;
            break;
        case DCS_CMD:
            isDCS = true;
             __FALLTHROUGH;
        case GEN_CMD:
        default:
            if ((status = dsi_->Cmd(&buffer[i+2], buffer[i+1], NULL, 0,
                                    isDCS)) != ZX_OK) {
                DISP_ERROR("Error loading LCD init table. Aborting %d\n", status);
                return status;
            }
            // increment by payload length
            i += buffer[i + 1] + 2; // the 2 includes current plus size field
            isDCS = false;
            break;
        }
    }
    return status;
}

zx_status_t Lcd::Disable() {
    ZX_DEBUG_ASSERT(initialized_);
    if (!enabled_) {
        return ZX_OK;
    }
    // First send shutdown command to LCD
    enabled_ = false;
    return LoadInitTable(lcd_shutdown_sequence, sizeof(lcd_shutdown_sequence));
}

zx_status_t Lcd::Enable() {
    ZX_DEBUG_ASSERT(initialized_);
    if (enabled_) {
        return ZX_OK;
    }
    // reset LCD panel via GPIO according to vendor doc
    gpio_config_out(&gpio_, 1);
    gpio_write(&gpio_, 1);
    zx_nanosleep(zx_deadline_after(ZX_MSEC(30)));
    gpio_write(&gpio_, 0);
    zx_nanosleep(zx_deadline_after(ZX_MSEC(10)));
    gpio_write(&gpio_, 1);
    zx_nanosleep(zx_deadline_after(ZX_MSEC(30)));
    // check status
    if (GetDisplayId() != ZX_OK) {
        DISP_ERROR("Cannot communicate with LCD Panel!\n");
        return ZX_ERR_TIMED_OUT;
    }
    zx_nanosleep(zx_deadline_after(ZX_USEC(10)));

    // load table
    zx_status_t status;
    if (panel_type_ == PANEL_TV070WSM_FT) {
        status = LoadInitTable(lcd_init_sequence_TV070WSM_FT,
                             sizeof(lcd_init_sequence_TV070WSM_FT));
    } else if (panel_type_ == PANEL_P070ACB_FT) {
        status = LoadInitTable(lcd_init_sequence_P070ACB_FT,
                             sizeof(lcd_init_sequence_P070ACB_FT));
    } else {
        DISP_ERROR("Unsupported panel detected!\n");
        status = ZX_ERR_NOT_SUPPORTED;
    }

    if (status == ZX_OK) {
        // LCD is on now.
        enabled_ = true;
    }
    return status;
}

zx_status_t Lcd::Init(zx_device_t* parent) {
    if (initialized_) {
        return ZX_OK;
    }
    platform_device_protocol_t pdev;
    zx_status_t status = device_get_protocol(parent, ZX_PROTOCOL_PLATFORM_DEV, &pdev);
    if (status != ZX_OK) {
        DISP_ERROR("Could not obtain platform device protocol\n");
        return status;
    }

    // Obtain GPIO protocol
    status = pdev_get_protocol(&pdev, ZX_PROTOCOL_GPIO, GPIO_LCD, &gpio_);
    if (status != ZX_OK) {
        DISP_ERROR("Could not obtain GPIO protocol\n");
        return status;
    }

    // Create a DW MIPI DSI object to use for sending dsi commands
    fbl::AllocChecker ac;
    dsi_ = fbl::make_unique_checked<astro_display::DwMipiDsi>(&ac);
    if (!ac.check()) {
        DISP_ERROR("Lcd: Could not create MIPI DSI object\n");
        return ZX_ERR_NO_MEMORY;
    }
    status = dsi_->Init(parent);
    if (status != ZX_OK) {
        DISP_ERROR("Lcd: MIPI DSI initialization failed\n");
        return status;
    }

    initialized_ = true;

    if (kBootloaderDisplayEnabled) {
        DISP_INFO("LCD Enabled by Bootloader. Disabling before proceeding\n");
        enabled_ = true;
        Disable();
    }

    return ZX_OK;
}

} // namespace astro_display